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The Nine Planets
Learning about our Solar System
Mercury
• Mercury is the closet
planet to the sun.
• It is the 8th largest planet.
• Mercury is a rocky planet.
• Mercury has no moons.
• The temperature ranges
from 90k to 700 k.
• Mercury is very old. It
has many craters.
Venus
• Venus is the 2nd planet
from the sun.
• Venus is the 6th largest
planet.
• Venus is a small, rocky
planet. It is covered with
clouds made of sulfuric
acid.
• Venus has no moons.
• Venus is very hot, about
400 degrees Celsius.
Earth
• Earth is the 3rd planet
from the sun.
• It is the 5th largest planet.
• The earth has one moon.
• Earth is a small, rocky
planet.
• Earth is the only planet
known to support life.
• 71% of the Earth’s
surface is covered with
water.
Mars
• Mars is the 4th planet
from the sun.
• Mars is the 7th largest
planet.
• Mars is a small, rocky
planet.
• Mars is very cold.
• Mars has 2 moons.
Jupiter
• Jupiter is the 5th planet
from the sun.
• It is the largest planet in
our Solar System.
• Jupiter is a giant gas
planet. It gives off 2 times
more heat than it gets from
the sun.
• Jupiter has at least 39
moons.
• Jupiter has wind storms.
• Jupiter has a large red
spot, which scientists think
is a storm which has raged
for hundreds of years!
• Jupiter has faint rings
around it.
Saturn
• Saturn is the 6th planet
from the sun.
• Saturn is the 2nd largest
planet.
• Saturn is a giant gas
planet. It emits twice as
much heat as it receives
from the sun.
• Saturn has rings around it.
• Saturn has at least 18
moons.
• Saturn is made up of
materials that are lighter
than water. If it was
placed in a huge pond, it
would float!
Uranus
• Uranus is the 7th planet
from the sun.
• Uranus is the 3rd largest
planet.
• Uranus is a giant gas
planet.
• Uranus is tilted sideways.
• Uranus has at least 15
moons.
• Methane makes Uranus
appear blue. It also makes
the upper atmosphere very
cold.
• Uranus has very faint rings
around it.
Neptune
• Neptune is the 8th
(usually) planet from the
sun. (Sometimes it
passes in back of Pluto,
making it the 9th planet.)
• Neptune is the 4th largest
planet.
• Neptune is a giant gas
planet.
• Methane makes Neptune
appear blue. This makes
it very cold on Neptune.
• Neptune has 8 moons.
• Neptune has very faint
rings.
Pluto
• Pluto in the 9th (usually)
and farthest planet from
the sun. (Sometimes it
passes in front of Neptune,
then it is the 8th planet.)
• Pluto is the smallest
planet.
• Pluto is a small, cold,
rocky planet.
• Pluto has one moon.
• Pluto seems to be lying on
its side.
• Pluto is so far away, that
we do not know much
about it.
The Sun
• The sun is a star.
• It is at the center of our
Solar System.
• The nine planets orbit
around the sun.
• It is made up of swirling
gases and nuclear
reactions.
• The sun provides the
Earth with heat and light.
• The sun is very, very hot.